Figure 3

C1s XPS spectra of crosslinked Ag NPs: (a) 90 °C; (b) 130 °C. When crosslinking temperature changes from 90 to 130 °C, the percentage of C–OR increases and the percentage of C=O decreases. It means that the content of furyl increases and the content of BMI lowers in the crosslinking layer on the surface of Ag NPs.